 radioradial and radiofemoral delay are not normal conditions. Normal situation radial and femoral pulsations are felt equally and synchronously. The inequality between two radial pulses is known as Radio radial delay. The delay between the radial pulse and the femoral pulse is called Radiofemoral delay.
What is Radioradial delay ?
To detect the radioradial delay you should simultaneously palpate both the radial arteries by both your hands, using  your left hand for  patients right radial artery and vice versa
Following are the  causes of radio-radial delayÂ
- Normal anatomical variations.
- Thoracic inlet syndrome e.g. cervical rib. scalene syndrome.
- Aneurysm of the aorta.
- Pre-subclavian coarctation.
- Supravalvular aortic stenosis.
- Pulseless disease (Takayasu’s disease).
- Peripheral embolism.
- Atherosclerosis of aorta.
- Pressure over an axillary artery by the tumor, lymph nodes, etc
What is radiofemoral delay?
To detect the radio-femoral delay, you should palpate the radial and femoral artery simultaneously Normally there is no radio-femoral delay.
Simultaneous palpation of two pulses can be diagnostic in radiofemoral delay. Normally the femoral and the radial pulse.
Causes of radio-femoral delay are the following
- Coarctation of the aorta (It is an important bedside diagnostic clue in a young hypertensive).
- Atherosclerosis of aorta.
- Thrombosis or embolism of aorta.
- Aortoarteritis.
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